VDB
DEBIAN-CVE-2025-39990
DEBIAN-CVE-2025-39990
PUBLISHED
In the Linux kernel, the following vulnerability has been resolved: bpf: Check the helper function is valid in get_helper_proto kernel test robot reported verifier bug [1] where the helper func pointer could be NULL due to disabled config option. As Alexei suggested we could check on that in get_helper_proto directly. Marking tail_call helper func with BPF_PTR_POISON, because it is unused by design. [1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0, 6.16-1, 6.16.1-1 |
| Debian:13 | linux | 0, 6.12.43-1, 6.12.48-1 |
| Debian:12 | linux | 6.4.4-1~bpo12+1, 6.4.4-2, 6.4~rc6-1~exp1 |
| Debian:11 | linux | 6.12.63-1, 6.12.69-1, 6.12.69-1 |
Timeline
- Oct 15, 2025 CVE Published
- Apr 28, 2026 CVE Updated